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-rw-r--r--block/sed-opal.c27
-rw-r--r--include/linux/sed-opal.h1
-rw-r--r--include/uapi/linux/sed-opal.h12
3 files changed, 40 insertions, 0 deletions
diff --git a/block/sed-opal.c b/block/sed-opal.c
index c54019c11e91..f94f359dd688 100644
--- a/block/sed-opal.c
+++ b/block/sed-opal.c
@@ -1989,6 +1989,30 @@ static int opal_enable_disable_shadow_mbr(struct opal_dev *dev,
return ret;
}
+static int opal_set_mbr_done(struct opal_dev *dev,
+ struct opal_mbr_done *mbr_done)
+{
+ u8 mbr_done_tf = mbr_done->done_flag == OPAL_MBR_DONE ?
+ OPAL_TRUE : OPAL_FALSE;
+
+ const struct opal_step mbr_steps[] = {
+ { start_admin1LSP_opal_session, &mbr_done->key },
+ { set_mbr_done, &mbr_done_tf },
+ { end_opal_session, }
+ };
+ int ret;
+
+ if (mbr_done->done_flag != OPAL_MBR_DONE &&
+ mbr_done->done_flag != OPAL_MBR_NOT_DONE)
+ return -EINVAL;
+
+ mutex_lock(&dev->dev_lock);
+ setup_opal_dev(dev);
+ ret = execute_steps(dev, mbr_steps, ARRAY_SIZE(mbr_steps));
+ mutex_unlock(&dev->dev_lock);
+ return ret;
+}
+
static int opal_save(struct opal_dev *dev, struct opal_lock_unlock *lk_unlk)
{
struct opal_suspend_data *suspend;
@@ -2310,6 +2334,9 @@ int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *arg)
case IOC_OPAL_ENABLE_DISABLE_MBR:
ret = opal_enable_disable_shadow_mbr(dev, p);
break;
+ case IOC_OPAL_MBR_DONE:
+ ret = opal_set_mbr_done(dev, p);
+ break;
case IOC_OPAL_ERASE_LR:
ret = opal_erase_locking_range(dev, p);
break;
diff --git a/include/linux/sed-opal.h b/include/linux/sed-opal.h
index f03bbffd3281..f834e8a1495f 100644
--- a/include/linux/sed-opal.h
+++ b/include/linux/sed-opal.h
@@ -40,6 +40,7 @@ static inline bool is_sed_ioctl(unsigned int cmd)
case IOC_OPAL_ERASE_LR:
case IOC_OPAL_SECURE_ERASE_LR:
case IOC_OPAL_PSID_REVERT_TPR:
+ case IOC_OPAL_MBR_DONE:
return true;
}
return false;
diff --git a/include/uapi/linux/sed-opal.h b/include/uapi/linux/sed-opal.h
index 7a03e5b4df6e..5681f55d334b 100644
--- a/include/uapi/linux/sed-opal.h
+++ b/include/uapi/linux/sed-opal.h
@@ -20,6 +20,11 @@ enum opal_mbr {
OPAL_MBR_DISABLE = 0x01,
};
+enum opal_mbr_done_flag {
+ OPAL_MBR_NOT_DONE = 0x0,
+ OPAL_MBR_DONE = 0x01
+};
+
enum opal_user {
OPAL_ADMIN1 = 0x0,
OPAL_USER1 = 0x01,
@@ -95,6 +100,12 @@ struct opal_mbr_data {
__u8 __align[7];
};
+struct opal_mbr_done {
+ struct opal_key key;
+ __u8 done_flag;
+ __u8 __align[7];
+};
+
#define IOC_OPAL_SAVE _IOW('p', 220, struct opal_lock_unlock)
#define IOC_OPAL_LOCK_UNLOCK _IOW('p', 221, struct opal_lock_unlock)
#define IOC_OPAL_TAKE_OWNERSHIP _IOW('p', 222, struct opal_key)
@@ -108,5 +119,6 @@ struct opal_mbr_data {
#define IOC_OPAL_ERASE_LR _IOW('p', 230, struct opal_session_info)
#define IOC_OPAL_SECURE_ERASE_LR _IOW('p', 231, struct opal_session_info)
#define IOC_OPAL_PSID_REVERT_TPR _IOW('p', 232, struct opal_key)
+#define IOC_OPAL_MBR_DONE _IOW('p', 233, struct opal_mbr_done)
#endif /* _UAPI_SED_OPAL_H */